Author Topic: Integrated Magnetics and Isolation  (Read 735 times)

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Offline veryevilTopic starter

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Integrated Magnetics and Isolation
« on: March 23, 2018, 09:30:49 am »
I'm looking to use this integrated RJ45 connector in a PoE design I'm working on and want to be clear about the 1.5kV isolation.

https://www.belfuse.com/product/part-details?partn=0813-1X1T-57-F

Do I need to keep 4mm distance between the power outputs 5,6,10 & 11 and the data pins 1,2,7,8 & 9?

Do I connect the shield to a ground plane on the non-isolated side of the flyback converter? 

Does anyone have a layout using integrated magnetics that I can see a screenshot of?
 

Offline veryevilTopic starter

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Re: Integrated Magnetics and Isolation
« Reply #1 on: March 23, 2018, 11:25:33 am »
Found this link which makes sense to me

http://pcb1001.blogspot.co.uk/2009/07/gigabit-ethernet-controller-design_11.html

Can anyone confirm?
 

Offline ovnr

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Re: Integrated Magnetics and Isolation
« Reply #2 on: March 23, 2018, 06:45:30 pm »
Power outputs are at the same potential as the data pins on the connector side; therefore, they must be routed away from the local data pins (left side of the schematic) with your normal clearance - which in your case may be 4 mm.

Shield gets connected as per the image you linked.
 


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